.book,
.book-list,
.add-book,
.update-book {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    min-height: 100%;
    background: url("/assets/images/background.jpg") no-repeat center center;
    background-size: cover;
}

.navbar {
    width: 100%;
    margin-bottom: 32px;
}

.card {
    margin-bottom: 32px;
}

/* 其他页面 */
.update-form-item,
.add-form-item {
    display: flex;
}

.update-form-item label,
.add-form-item label {
    width: 35%;
}

.update-form-item input,
.add-form-item input {
    width: 63%;
    height: 24px;
}

.update-form-item button,
.add-form-item button {
    width: 100%;
    margin-top: 16px;
}
